Which layer of earth is made up of crust and partly of mantle material

True or false: Alkali Metals tend to bond with themselves

The water in a 150-mL flask is poured into a beaker that contains 600 mL of ethyl alcohol. Which substance is the solvent in this mixture?

Organic hydrogenation reactions, in which H₂ and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C₂H₄) and H₂ form ethane (C₂H₆).

What is the pressure of the gas in this mercury manometer if h = 53 mm and atmospheric pressure is 759 mmHg?

90 nitroglycerin (c3h5n3o9) is a powerful explosive. its decomposition may be represented by this reaction generates a large amount of heat and many gaseous products.

A wireless computer network uses radio waves to transmit signals. What device sends and receives radio signals in a wireless network? A) modem B) router C) digital translator D) digital interpreter

1. The gradual wearing away or breaking down of rocks by abrasion is a what type of weathering.

Molecules involved in a chemical reaction must meet to react. What is this concept called? Enthalpy Collision theory Enthropy Reaction rate

If a compound has a molar mass of 180 g/mol and its empirical formula is CH20, what is its molecular formula? CH20 C₂H4O2 C6H1206 C12H22011

Which element has six energy levels? A) rubidium (Rb) B) cesium (Cs) C) potassium (K) D) sodium (Na)